GSP
Quick Navigator

Search Site

Unix VPS
A - Starter
B - Basic
C - Preferred
D - Commercial
MPS - Dedicated
Previous VPSs
* Sign Up! *

Support
Contact Us
Online Help
Handbooks
Domain Status
Man Pages

FAQ
Virtual Servers
Pricing
Billing
Technical

Network
Facilities
Connectivity
Topology Map

Miscellaneous
Server Agreement
Year 2038
Credits
 

USA Flag

 

 

Man Pages


Manual Reference Pages  -  SQL::ABSTRACT::TEST (3)

.ds Aq ’

NAME

SQL::Abstract::Test - Helper function for testing SQL::Abstract

CONTENTS

SYNOPSIS



  use SQL::Abstract;
  use Test::More;
  use SQL::Abstract::Test import => [qw/
    is_same_sql_bind is_same_sql is_same_bind
    eq_sql_bind eq_sql eq_bind
  /];

  my ($sql, @bind) = SQL::Abstract->new->select(%args);

  is_same_sql_bind($given_sql,    \@given_bind,
                   $expected_sql, \@expected_bind, $test_msg);

  is_same_sql($given_sql, $expected_sql, $test_msg);
  is_same_bind(\@given_bind, \@expected_bind, $test_msg);

  my $is_same = eq_sql_bind($given_sql,    \@given_bind,
                            $expected_sql, \@expected_bind);

  my $sql_same = eq_sql($given_sql, $expected_sql);
  my $bind_same = eq_bind(\@given_bind, \@expected_bind);



DESCRIPTION

This module is only intended for authors of tests on SQL::Abstract and related modules; it exports functions for comparing two SQL statements and their bound values.

The SQL comparison is performed on abstract syntax, ignoring differences in spaces or in levels of parentheses. Therefore the tests will pass as long as the semantics is preserved, even if the surface syntax has changed.

<B>DisclaimerB> : the semantic equivalence handling is pretty limited. A lot of effort goes into distinguishing significant from non-significant parenthesis, including AND/OR operator associativity. Currently this module does not support commutativity and more intelligent transformations like De Morgan’s laws
<http://en.wikipedia.org/wiki/De_Morgan’s_laws>, etc.

For a good overview of what this test framework is currently capable of refer to t/10test.t

FUNCTIONS

    is_same_sql_bind



  is_same_sql_bind(
    $given_sql, \@given_bind,
    $expected_sql, \@expected_bind,
    $test_msg
  );

  is_same_sql_bind(
    \[$given_sql, @given_bind],
    \[$expected_sql, @expected_bind],
    $test_msg
  );

  is_same_sql_bind(
    $dbic_rs->as_query
    $expected_sql, \@expected_bind,
    $test_msg
  );



Compares given and expected pairs of ($sql, \@bind) by unpacking @_ as shown in the examples above and passing the arguments to eq_sql and eq_bind. Calls ok in Test::Builder with the combined result, with $test_msg as message. If the test fails, a detailed diagnostic is printed.

    is_same_sql



  is_same_sql(
    $given_sql,
    $expected_sql,
    $test_msg
  );



Compares given and expected SQL statements via eq_sql, and calls ok in Test::Builder on the result, with $test_msg as message. If the test fails, a detailed diagnostic is printed.

    is_same_bind



  is_same_bind(
    \@given_bind,
    \@expected_bind,
    $test_msg
  );



Compares given and expected bind values via eq_bind, and calls ok in Test::Builder on the result, with $test_msg as message. If the test fails, a detailed diagnostic is printed.

    eq_sql_bind



  my $is_same = eq_sql_bind(
    $given_sql, \@given_bind,
    $expected_sql, \@expected_bind,
  );

  my $is_same = eq_sql_bind(
    \[$given_sql, @given_bind],
    \[$expected_sql, @expected_bind],
  );

  my $is_same = eq_sql_bind(
    $dbic_rs->as_query
    $expected_sql, \@expected_bind,
  );



Unpacks @_ depending on the given arguments and calls eq_sql and eq_bind, returning their combined result.

    eq_sql



  my $is_same = eq_sql($given_sql, $expected_sql);



Compares the abstract syntax of two SQL statements. Similar to is_same_sql, but it just returns a boolean value and does not print diagnostics or talk to Test::Builder. If the result is false, the global variable $sql_differ will contain the SQL portion where a difference was encountered; this is useful for printing diagnostics.

    eq_bind



  my $is_same = eq_sql(\@given_bind, \@expected_bind);



Compares two lists of bind values, taking into account the fact that some of the values may be arrayrefs (see bindtype in SQL::Abstract). Similar to is_same_bind, but it just returns a boolean value and does not print diagnostics or talk to Test::Builder.

GLOBAL VARIABLES

CW$case_sensitive

If true, SQL comparisons will be case-sensitive. Default is false;

CW$parenthesis_significant

If true, SQL comparison will preserve and report difference in nested parenthesis. Useful while testing IN (( x )) vs IN ( x ). Defaults to false;

CW$order_by_asc_significant

If true SQL comparison will consider ORDER BY foo ASC and ORDER BY foo to be different. Default is false;

CW$sql_differ

When eq_sql returns false, the global variable $sql_differ contains the SQL portion where a difference was encountered.

SEE ALSO

SQL::Abstract, Test::More, Test::Builder.

AUTHORS

Laurent Dami <laurent.dami AT etat geneve ch>

Norbert Buchmuller <norbi@nix.hu>

Peter Rabbitson <ribasushi@cpan.org>

COPYRIGHT AND LICENSE

Copyright 2008 by Laurent Dami.

This library is free software; you can redistribute it and/or modify it under the same terms as Perl itself.

Search for    or go to Top of page |  Section 3 |  Main Index


perl v5.20.3 SQL::ABSTRACT::TEST (3) 2014-09-19

Powered by GSP Visit the GSP FreeBSD Man Page Interface.
Output converted with manServer 1.07.